บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Toxicity of secondary metabolites of the fungus F.culmorum in relation to resistance of winter wheat cultivars.

SROBAROVA, A. and PAVLOVA, A.

Cereal Research Communications 29 : 101 – 108.

2001

บทคัดย่อ

Toxicity of secondary metabolites of the fungus F.culmorum in relation to resistance of winter wheat cultivars.

The toxicity of secondary metabolites of Fusarium culmorum were studied in wheat seedlings. Seedlings were exposed to different concentrations of DON, diacetoxyscirpenol and culture filtrates of F. culmorum. Phytotoxicity was evaluated according to biomass production and level of free proline accumulation. Trichothecenes are specific inhibitors of protein synthesis which cause free amino acids to accumulate in the tissue. Free proline was determined as indicator of this accumulation. The highest level of accumulation of free proline was found in the susceptible cultivar Barbara. Highly resistant to the toxins was the medium resistant cv. Samanta, but no cv. Hana which is most resistant to the fungus.